US20060215385A1 - Combined instrument - Google Patents

Combined instrument Download PDF

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Publication number
US20060215385A1
US20060215385A1 US10/541,178 US54117805A US2006215385A1 US 20060215385 A1 US20060215385 A1 US 20060215385A1 US 54117805 A US54117805 A US 54117805A US 2006215385 A1 US2006215385 A1 US 2006215385A1
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US
United States
Prior art keywords
light
circuit board
printed circuit
light guide
instrument cluster
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US10/541,178
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US7322711B2 (en
Inventor
Michael Steiert
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Siemens AG
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Siemens AG
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Filing date
Publication date
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Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STEIERT, MICHAEL
Publication of US20060215385A1 publication Critical patent/US20060215385A1/en
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Publication of US7322711B2 publication Critical patent/US7322711B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
    • B60Q3/12—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting onto the surface to be illuminated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/40—Hardware adaptations for dashboards or instruments
    • B60K2360/42—Circuit board features

Definitions

  • the present invention relates to an instrument cluster having a printed circuit board on which a light source is provided in order to generate light for illuminating a display, and a frame in which the printed circuit board is held.
  • Such instrument clusters that are fitted in the dashboard of a vehicle in the visual range of the driver are known from motor vehicles. As a rule, they have a multiplicity of display panels that are accommodated in a common plastic housing and can be read off by the driver through a transparent cover. These instrument clusters provide both digital and analog display panels that display to the driver multifarious information such as, for example, vehicle speed, engine speed or tank filling level.
  • All the display panels share in common a dial with numerals or symbols that is arranged on the display panel and bears the luminous symbols required for identification.
  • the dial is a separate disk made from nonluminous material and to which an appropriate imprint for the individual variables to be displayed is applied.
  • the display panels are arranged spaced apart in a defined fashion on a printed circuit board having a circuit arrangement and light-emitting light sources, and are surrounded by a frame having a transparent pane. The arrangement and number of the display panels to be used are determined by the number and position of the light sources to be arranged on the printed circuit board.
  • the display panels are arranged on a reflector and have a defined spacing from the printed circuit board. This determines a fixed overall height of the instrument cluster, and thus a requisite minimum installation depth in a dashboard.
  • the object is achieved according to the invention by virtue of the fact that the display panel is arranged directly on the printed circuit board, and a light guide is provided that is held in the frame in an area adjoining the printed circuit board, and the light guide is arranged in such a way that light emitted by the light source is fed into the light guide and radiated onto the display panel.
  • the application of the display panel in the form of a dial, for example, directly on the printed circuit board results in the elimination and saving of the conventional fastening means for locking the display panels.
  • a dial it is advantageous for a dial to be bonded onto the printed circuit board, or for a dial to be applied using a printing method.
  • the dials can easily be fashioned in a variety of colors in order to improve distinction.
  • the frame has a light guide with an incoupling surface and outcoupling surface, the light guide deflecting the light between the incoupling surface and outcoupling surface.
  • the end of the light guide that at least partially surrounds the light source forms the incoupling surface of the emitted light and leads the light at the required angle to the outcoupling surface at which the light is output and which illuminates the display panels arranged on the printed circuit board.
  • the outcoupling surface can be a multiple of the incoupling surface.
  • the outcoupling surface of the light guide can extend over relatively large areas such that various illuminations, for example punctiform, strip-shaped or two-dimensional illuminations, are possible from the point of view of the display panel, depending on the radiation angle of the light source and/or the geometry of the outcoupling surface.
  • a particular cost advantage results on the basis of the single-piece production, for example, using the two-component injection-molding process, of the frame and of the light guide.
  • FIG. 1 shows an exemplary embodiment of the instrument cluster according to the invention
  • FIG. 2 shows a sectional illustration A-A of the instrument cluster illustrated in FIG. 1 .
  • FIG. 3 shows a further sectional illustration of the instrument cluster illustrated in FIG. 1 .
  • FIG. 1 shows a plan view of the instrument cluster 1 according to the invention.
  • the instrument cluster 1 comprises a frame 31 and a housing rear wall 32 , and surrounds two display panels 2 and warning panels 4 arranged below the display panels 2 .
  • Outcoupling surfaces 92 of light guides 9 that are not illustrated here may be seen in the outer area on the inner wall of the frame 31 , a uniform illumination of the display panels 2 being effected by the light, emanating from the frame 31 , emitted from these outcoupling surfaces 92 .
  • an instrument cluster 1 has individual warning panels 4 , for example in order to display turn signals, hazard warning systems or lighting status, that inform the driver about normal or extraordinary operating states.
  • the illumination of these warning panels 4 is enabled by further LEDs 7 that are arranged on a printed circuit board 5 and whose emitted light is guided via light guides 6 , arranged on the rear side of the frame 31 of the instrument cluster 1 , to the side of the frame 31 of the instrument cluster 1 that faces the viewer and on which an imprint of the warning panel 4 is placed at appropriate location.
  • FIG. 3 A further sectional illustration through the instrument cluster 1 shown in FIG. 1 is illustrated in FIG. 3 .
  • the printed circuit board 5 is arranged on the housing rear wall 32 of the instrument cluster 1 .
  • a dial 10 that has been bonded onto the printed circuit board 5 or applied onto the printed circuit board 5 using the printing method.
  • a light-emitting light source 8 preferably an LED, is mounted in the outer area of the printed circuit board 5 .
  • the frame 31 surrounds the printed circuit board 5 and components arranged on the printed circuit board 5 .
  • One end of the frame 31 has a light guide 9 , the end of the light guide 9 surrounding the LED 8 arranged on the printed circuit board, and serving as incoupling surface 91 for the emitted light.
  • the emitted light is deflected in the light guide 9 by an angle of 90° such that light emerges from the outcoupling surface 92 parallel to the display panels 2 , and illuminates the surface of the display panels 2 homogeneously.
  • the deflecting angle can be of any desired alignment such that, depending on what is required, the light need not be fed in parallel to the display panel 2 . Since the light can be reflected at the outer inner side 93 of the light guide 9 , it is possible on the basis of a freely dimensionable geometric shape of the light guide 9 to determine at which point and at which angle light fed into the incoupling surface 91 reemerges at the outcoupling surface 92 .
  • the overall height of the instrument cluster 1 can be substantially reduced because the display panels 2 are applied directly on the printed circuit board 5 .
  • a homogeneous illumination of the display panels 2 can be effected on the basis of the illumination of the display panels 2 via outcoupling surfaces 92 arranged in the frame 31 . This leads to savings in component costs for fastening the display panels 2 , and in the component costs for a multiplicity of LEDs 8 and in the outlay they require for the power supply.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Details Of Measuring Devices (AREA)
  • Instrument Panels (AREA)

Abstract

The invention relates to a combined instrument (1) comprising a printed board (5), on which a light source (8) is provided that generates light for illuminating a display, and comprising a frame (31), inside of which the printed board (5) is accommodated. The display field (2) is directly mounted on the printed board (5) and a light guide (9) is provided, which is accommodated inside the frame (31) in an area adjoining the printed board (5). The light guide (9) is arranged in such a manner that light emitted by the light source (8) is fed into the light guide (9) and radiated onto the display field (2).

Description

  • The present invention relates to an instrument cluster having a printed circuit board on which a light source is provided in order to generate light for illuminating a display, and a frame in which the printed circuit board is held.
  • Such instrument clusters that are fitted in the dashboard of a vehicle in the visual range of the driver are known from motor vehicles. As a rule, they have a multiplicity of display panels that are accommodated in a common plastic housing and can be read off by the driver through a transparent cover. These instrument clusters provide both digital and analog display panels that display to the driver multifarious information such as, for example, vehicle speed, engine speed or tank filling level.
  • All the display panels share in common a dial with numerals or symbols that is arranged on the display panel and bears the luminous symbols required for identification. As a rule, the dial is a separate disk made from nonluminous material and to which an appropriate imprint for the individual variables to be displayed is applied. The display panels are arranged spaced apart in a defined fashion on a printed circuit board having a circuit arrangement and light-emitting light sources, and are surrounded by a frame having a transparent pane. The arrangement and number of the display panels to be used are determined by the number and position of the light sources to be arranged on the printed circuit board.
  • It is customary for this purpose to distribute the light sources behind the entire surface to be illuminated in order to ensure that the luminosity and luminance distribution of the display panels are as uniform as possible. Economizing with reference to the number of light-emitting light sources requires the use of particular light guides having light channels that, for example, guide the emitted light along a longitudinal direction and backlight the scale marks, for example, of a dial to be illuminated. As a rule, the size of the printed circuit board corresponds to the area of the display panels to be illuminated and consequently entails a high price and high manufacturing costs.
  • The display panels are arranged on a reflector and have a defined spacing from the printed circuit board. This determines a fixed overall height of the instrument cluster, and thus a requisite minimum installation depth in a dashboard.
  • It is an object of the present invention to provide an instrument cluster that has a small overall height, has a simple design and can be produced cost effectively, and whose display panels are illuminated with a homogeneous intensity of illumination.
  • The object is achieved according to the invention by virtue of the fact that the display panel is arranged directly on the printed circuit board, and a light guide is provided that is held in the frame in an area adjoining the printed circuit board, and the light guide is arranged in such a way that light emitted by the light source is fed into the light guide and radiated onto the display panel.
  • This has the advantage that it is no longer necessary for the individual display panels to be backlit since, because of the arrangement of the light sources and of the light guides surrounding the light sources, the emitted light is output in such a way that the display panels are illuminated from the front, that is to say the side facing the viewer. This results in a substantial reduction in the number of light sources and light channels. It is therefore possible to provide a printed circuit board that is populated on one side and permits the display panel to be arranged directly on the printed circuit board. Since there is no need to provide background lighting for the display panels, the latter need no longer be arranged at a spacing from the printed circuit board, and so the overall height of the instrument cluster can be substantially reduced.
  • The application of the display panel in the form of a dial, for example, directly on the printed circuit board results in the elimination and saving of the conventional fastening means for locking the display panels.
  • It is advantageous for a dial to be bonded onto the printed circuit board, or for a dial to be applied using a printing method. The dials can easily be fashioned in a variety of colors in order to improve distinction.
  • At the end facing the printed circuit board the frame has a light guide with an incoupling surface and outcoupling surface, the light guide deflecting the light between the incoupling surface and outcoupling surface. In an advantageous way, the end of the light guide that at least partially surrounds the light source forms the incoupling surface of the emitted light and leads the light at the required angle to the outcoupling surface at which the light is output and which illuminates the display panels arranged on the printed circuit board. In this case, the outcoupling surface can be a multiple of the incoupling surface. The outcoupling surface of the light guide can extend over relatively large areas such that various illuminations, for example punctiform, strip-shaped or two-dimensional illuminations, are possible from the point of view of the display panel, depending on the radiation angle of the light source and/or the geometry of the outcoupling surface.
  • A particular cost advantage results on the basis of the single-piece production, for example, using the two-component injection-molding process, of the frame and of the light guide.
  • The invention is explained in more detail below with the aid of the exemplary embodiment illustrated in the figures. Identical or corresponding elements in the various figures are provided with identical reference numerals.
  • In the drawing:
  • FIG. 1 shows an exemplary embodiment of the instrument cluster according to the invention,
  • FIG. 2 shows a sectional illustration A-A of the instrument cluster illustrated in FIG. 1, and
  • FIG. 3 shows a further sectional illustration of the instrument cluster illustrated in FIG. 1.
  • FIG. 1 shows a plan view of the instrument cluster 1 according to the invention. The instrument cluster 1 comprises a frame 31 and a housing rear wall 32, and surrounds two display panels 2 and warning panels 4 arranged below the display panels 2.
  • Outcoupling surfaces 92 of light guides 9 that are not illustrated here may be seen in the outer area on the inner wall of the frame 31, a uniform illumination of the display panels 2 being effected by the light, emanating from the frame 31, emitted from these outcoupling surfaces 92.
  • As may be seen from the sectional illustration A-A of FIG. 2 of the instrument cluster 1 illustrated in FIG. 1, it is possible to integrate into the instrument cluster 1 warning panels 4 that necessitate the conventional background lighting. As a rule, an instrument cluster 1 has individual warning panels 4, for example in order to display turn signals, hazard warning systems or lighting status, that inform the driver about normal or extraordinary operating states. The illumination of these warning panels 4 is enabled by further LEDs 7 that are arranged on a printed circuit board 5 and whose emitted light is guided via light guides 6, arranged on the rear side of the frame 31 of the instrument cluster 1, to the side of the frame 31 of the instrument cluster 1 that faces the viewer and on which an imprint of the warning panel 4 is placed at appropriate location.
  • A further sectional illustration through the instrument cluster 1 shown in FIG. 1 is illustrated in FIG. 3. The printed circuit board 5 is arranged on the housing rear wall 32 of the instrument cluster 1. Located directly on the printed circuit board 5 is a dial 10 that has been bonded onto the printed circuit board 5 or applied onto the printed circuit board 5 using the printing method. A light-emitting light source 8, preferably an LED, is mounted in the outer area of the printed circuit board 5. The frame 31 surrounds the printed circuit board 5 and components arranged on the printed circuit board 5. One end of the frame 31 has a light guide 9, the end of the light guide 9 surrounding the LED 8 arranged on the printed circuit board, and serving as incoupling surface 91 for the emitted light. In this exemplary embodiment, the emitted light is deflected in the light guide 9 by an angle of 90° such that light emerges from the outcoupling surface 92 parallel to the display panels 2, and illuminates the surface of the display panels 2 homogeneously. However, the deflecting angle can be of any desired alignment such that, depending on what is required, the light need not be fed in parallel to the display panel 2. Since the light can be reflected at the outer inner side 93 of the light guide 9, it is possible on the basis of a freely dimensionable geometric shape of the light guide 9 to determine at which point and at which angle light fed into the incoupling surface 91 reemerges at the outcoupling surface 92.
  • As may be seen from FIG. 3, the overall height of the instrument cluster 1 can be substantially reduced because the display panels 2 are applied directly on the printed circuit board 5. A homogeneous illumination of the display panels 2 can be effected on the basis of the illumination of the display panels 2 via outcoupling surfaces 92 arranged in the frame 31. This leads to savings in component costs for fastening the display panels 2, and in the component costs for a multiplicity of LEDs 8 and in the outlay they require for the power supply.

Claims (9)

1. (canceled)
2. The instrument cluster according to claim 9, wherein the display panel is designed as a dial printed on the printed circuit board.
3. The instrument cluster according to claim 9, wherein the display panel is designed as a dial laundered on the printed circuit board.
4. The instrument cluster according to claim 9, wherein the light guide comprises an incoupling surface and an outcoupling surface, and the light guide at least partially surrounds the light source on the printed circuit board.
5. The instrument cluster according to claim 9, wherein the light source is a light-emitting diode or a laser diode above which the light guide is arranged and which couples the emitted light directly into the light guide.
6. The instrument cluster according to claim 9, wherein the light guide is arranged to deflects the emitted light between the incoupling surface and outcoupling surface.
7. The instrument cluster according to claim 9, wherein the light guide comprises plastic in one piece with the frame.
8. The instrument cluster according to claim 7, wherein the frame and the light guide comprises one piece of a two-component injection molding.
9. An instrument cluster, comprising:
a printed circuit board on which a display panel is directly arranged,
a frame in which the printed circuit board is held,
a light source arranged on the printed circuit board in order to generate light for illuminating a display, and
a light guide arranged in the frame in an area adjoining the printed circuit board such that light emitted by the light source is fed into the light guide and radiated onto the surface of the display panel.
US10/541,178 2003-01-28 2003-12-10 Combined instrument Expired - Fee Related US7322711B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10303308A DE10303308A1 (en) 2003-01-28 2003-01-28 instrument cluster
DE10303308.4 2003-01-28
PCT/DE2003/004065 WO2004067321A1 (en) 2003-01-28 2003-12-10 Combined instrument

Publications (2)

Publication Number Publication Date
US20060215385A1 true US20060215385A1 (en) 2006-09-28
US7322711B2 US7322711B2 (en) 2008-01-29

Family

ID=32730586

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/541,178 Expired - Fee Related US7322711B2 (en) 2003-01-28 2003-12-10 Combined instrument

Country Status (7)

Country Link
US (1) US7322711B2 (en)
EP (1) EP1587711B1 (en)
JP (1) JP2006513432A (en)
CN (1) CN100457507C (en)
BR (1) BR0318050A (en)
DE (2) DE10303308A1 (en)
WO (1) WO2004067321A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070030699A1 (en) * 2005-08-08 2007-02-08 Au Optronics Corporation Backlight module structure

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032674A1 (en) * 2006-07-13 2008-01-17 Siemens Ag Printed symbol carriers, in particular for use e.g. as dial and symbol disc in motor vehicle instrumentations
JP5289227B2 (en) * 2009-07-29 2013-09-11 矢崎総業株式会社 Lighting structure of automotive instrument
JP6127678B2 (en) * 2013-04-15 2017-05-17 株式会社デンソー Vehicle display device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207813A (en) * 1978-12-18 1980-06-17 Tech-Aid Inc. Marking apparatus and method therefor
US5047761A (en) * 1989-02-16 1991-09-10 Vdo Adolf Schindling Ag Pointer illuminated instrument
US5839810A (en) * 1994-12-20 1998-11-24 Robert Bosch Gmbh Display gauge
US6210011B1 (en) * 1996-05-21 2001-04-03 Denso Corporation Indicating instrument for vehicle
US6318872B1 (en) * 1999-05-25 2001-11-20 Denso Corporation Vehicle light meter having two colored layers with ring member dial
US6409355B1 (en) * 1996-08-10 2002-06-25 Mannesmann Vdo Ag Combination instrument
US6499852B1 (en) * 1999-09-07 2002-12-31 Toyoda Gosei Co., Ltd. Vehicle display lighting device
US6646622B1 (en) * 1999-08-31 2003-11-11 Mannesmann Vdo Ag Combination instrument

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2505086C3 (en) 1975-02-07 1978-06-15 Vdo Adolf Schindling Ag, 6000 Frankfurt Display instrument
DE19514902A1 (en) * 1994-12-20 1996-06-27 Bosch Gmbh Robert Display instrument
JP3156836B2 (en) * 1995-12-07 2001-04-16 矢崎総業株式会社 Pointer display
FR2744680B1 (en) * 1996-02-14 1998-04-03 Sagem DASHBOARD WITH CONDUCTOR HOUSING
DE19623406C5 (en) * 1996-06-12 2012-10-31 Robert Bosch Gmbh Construction of an electric instrument cluster
FR2751283B1 (en) * 1996-07-22 1998-09-04 Sagem SIMPLIFIED DASHBOARD
DE19645674A1 (en) * 1996-11-06 1998-05-07 Mannesmann Vdo Ag Display instrument
DE19800389B4 (en) 1997-02-05 2011-07-21 Sagem S.A. Dashboard with lighting from the front
JPH10260063A (en) 1997-03-18 1998-09-29 Yazaki Corp Instrument illuminating device
FR2761029B1 (en) 1997-03-24 1999-06-04 Magneti Marelli France DASHBOARD FOR MOTOR VEHICLES COMPRISING A NEEDLE DISPLAY AND AN ELECTRO-OPTICAL DISPLAY
ITTO980395A1 (en) * 1997-05-16 1999-11-12 Sagem DASHBOARD WITH TRANSVERSAL LIGHTING OF SIGNALING CHARACTERS.
DE19737787B4 (en) * 1997-08-29 2006-05-24 Robert Bosch Gmbh display
DE19745900A1 (en) * 1997-10-17 1999-05-20 Bosch Gmbh Robert Combination instrument
DE19819393C2 (en) * 1998-04-30 2001-10-18 Bosch Gmbh Robert Instrument cluster and corresponding manufacturing process
FR2779683B1 (en) 1998-06-16 2002-12-06 Magneti Marelli France DISPLAY DEVICE, PARTICULARLY IN THE FORM OF AN INSTRUMENT PANEL FOR A MOTOR VEHICLE
DE10046237B4 (en) * 2000-09-19 2008-01-24 Robert Bosch Gmbh Pointer display device and corresponding manufacturing method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207813A (en) * 1978-12-18 1980-06-17 Tech-Aid Inc. Marking apparatus and method therefor
US5047761A (en) * 1989-02-16 1991-09-10 Vdo Adolf Schindling Ag Pointer illuminated instrument
US5839810A (en) * 1994-12-20 1998-11-24 Robert Bosch Gmbh Display gauge
US6210011B1 (en) * 1996-05-21 2001-04-03 Denso Corporation Indicating instrument for vehicle
US6409355B1 (en) * 1996-08-10 2002-06-25 Mannesmann Vdo Ag Combination instrument
US6318872B1 (en) * 1999-05-25 2001-11-20 Denso Corporation Vehicle light meter having two colored layers with ring member dial
US6646622B1 (en) * 1999-08-31 2003-11-11 Mannesmann Vdo Ag Combination instrument
US6499852B1 (en) * 1999-09-07 2002-12-31 Toyoda Gosei Co., Ltd. Vehicle display lighting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070030699A1 (en) * 2005-08-08 2007-02-08 Au Optronics Corporation Backlight module structure

Also Published As

Publication number Publication date
BR0318050A (en) 2005-12-20
CN100457507C (en) 2009-02-04
EP1587711A1 (en) 2005-10-26
US7322711B2 (en) 2008-01-29
CN1745002A (en) 2006-03-08
WO2004067321A1 (en) 2004-08-12
EP1587711B1 (en) 2007-11-14
JP2006513432A (en) 2006-04-20
DE10303308A1 (en) 2004-08-19
DE50308619D1 (en) 2007-12-27

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